Chapter 5 – Fuel feed system
Service manual AJP PR3/PR4 5 - 13
Ensure that there is no excessive wear on the
air butterfly pivot shaft and the respective
spring, and that the screws are properly
blocked.
Inspect the settlement of the conical valve in
the carburetor body.
Notes:
Check possible wear, cracks or leaks in the
float, it can cause excessive fuel
consumption.
Check the weight of the float, if it is outside
the specified should be replaced.
Also check possible wear on the tip of the
valve and also the settlement located in the
carburetor has excessive wear. If it is
found, replace the assembly.
Float Weight: 10 gr (+-1 gr).
If you experience any of the above items,
replace the diaphragm.
Clean and blow with compressed air and
make the assembly in the reverse order.
Check each jets and confirm the diameter of
the holes according to the specifications table
for the carburetor that equips the bike model
in question.
Note:
In carburetors fitted earlier bikes from 2001
to 2011, the existing marking in the jets
may not match the real diameter, since
carburetors were intervened and jets were
modified in AJP Motos to obtain the best
regulation possible order to achieve more
efficient operation of the motorcycle.
The PR3 / PR4 motorcycles produced
since 2012 (inclusive), the existing marking
in the jets match to the actual diameter of
the holes of the injectors in PZ30
carburetor, with or without power jet pump.
